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HIPAA-Compliant Cold Storage for Healthcare Data

Securely store inactive patient data when you aren’t using it — and still access what you need when it matters.
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Why do teams need HIPAA-compliant cold storage? 

Healthcare organizations run on data — much of it Protected Health Information (PHI) that needs to be treated carefully to maintain HIPAA compliance requirements. 
But retaining that data can be a headache, especially if it’s not in active use any longer (in many cases, retention requirements stretch for years). Patient records, historical data, and backups all have to be preserved in a HIPAA-compliant environment, but doing so in your active administration system can be costly.
That’s where cold storage comes in.

Legacy systems still running

  • cost
  • maintenance

Legacy systems still running

  • cost
  • maintenance

35%

of healthcare data 

is inactive

What “Cold Storage” Means in Healthcare

Cold storage refers to long-term storage for data that is rarely accessed but still needs to be retained. This often includes legacy EHR data, historical patient records, compliance data, and backups.
The goal is to reduce cost and complexity while maintaining access and meeting regulatory requirements. Even when data is inactive, it still needs appropriate safeguards, including controlled access and clear tracking of changes.

Where Traditional Approaches Fall Short

There are two common ways teams handle this today:

Keep all PHI — even outdated, inactive data — in their current administrative system (EHR, etc).

This maintains it for legal retention requirements, but it comes with ongoing infrastructure costs, licensing fees, and maintenance overhead.

Move data into low-cost storage.

While this reduces spend, it often makes the data harder to use. Access may require engineering support, and non-technical teams lose visibility into what is stored.

In both cases, data is retained, but it’s either expensive to keep or not easily usable.

Knack Health: A More Practical Approach to Cold Storage

Store data for the long term without turning it into a static archive.

Knack Health provides a structured way to store healthcare data outside of active systems while keeping it accessible.

Import data from legacy systems into an organized database for long-term retention. Access is managed through simple interfaces and controlled through roles and permissions, so teams only see what they need — without relying on engineering support or rebuilding old systems.

Because Knack is a no-code platform, you can also build lightweight workflows or views on top of archived data when needed.

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Common Use Cases

Decommissioning Legacy Systems

Move historical data out of outdated platforms so they can be retired without losing access.

Long-term Record Retention

Store required patient records in a system designed for access and organization, not just storage.

Audit and Compliance Requests

Retrieve records quickly when audits or internal reviews require them.

Backup and Recovery

Maintain structured backups that can be accessed and verified when needed.

Built with Healthcare Data Requirements in Mind

Storing PHI for the long term still requires the right safeguards.
Knack Health supports role-based access control, secure data handling practices, and record change logs to track updates over time. Business Associate Agreements (BAA) are also supported.
This gives teams a foundation for managing inactive healthcare data in a way that aligns with HIPAA expectations, without relying on legacy systems.

Reduce the cost of storing healthcare data without losing access.

If you’re planning to retire a system or need a better way to manage long-term data, we can walk through your current setup and show how Knack can help.
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HIPAA-Compliant Cold Storage FAQs

What is HIPAA-compliant data storage?

HIPAA-compliant data storage refers to any system used to store protected health information (PHI) in a way that meets HIPAA requirements.

That includes safeguards like controlled access, secure data handling, and the ability to track changes to records over time. It also typically requires a Business Associate Agreement (BAA) between the storage provider and the organization handling the data.

The key point is that compliance applies to all PHI, whether it is actively used or stored long term.

Cold storage is long-term storage for data that is rarely accessed but still needs to be retained. In healthcare, this often includes legacy patient records, historical data from retired systems, compliance records, and backups. The goal is to reduce the cost and complexity of storing this data while keeping it available if needed. Cold storage does not mean the data is inaccessible. It means access is less frequent, but still possible.

Retention requirements vary based on state laws, provider type, and the kind of record being stored.

In many cases, patient records must be retained for several years after the last interaction. For minors, records are often kept for a number of years after the patient reaches adulthood.

Because requirements differ, most organizations plan for long-term retention by default. This is one reason archived data continues to grow over time.

When a system is replaced, the data it contains still needs to be retained and accessible. Some organizations keep the legacy system running in a limited capacity to preserve access. Others export the data into storage, which can reduce cost but make retrieval more difficult. A more practical approach is to move that data into a structured system designed for long-term storage. This allows you to retire the old system while still being able to search and retrieve records when needed.

Cold storage alone is not enough. The way data is stored and accessed still needs to meet HIPAA requirements.

That includes limiting access to authorized users, protecting the data from unauthorized exposure, and maintaining a clear record of changes.

Even if data is rarely accessed, it is still subject to the same rules as active data.

It depends on how the data is stored.

In many traditional storage setups, accessing archived data requires technical support or manual retrieval processes. This can slow down audits, internal requests, or patient record lookups.

When data is stored in a structured system with a usable interface, teams can search and retrieve records directly, without relying on engineering or reopening legacy systems.

Costs often come from maintaining systems that are no longer actively used. Reducing costs typically involves moving inactive data out of those systems and into a more efficient storage layer. The challenge is doing this without losing access or creating new operational friction. A structured storage approach allows organizations to retire legacy systems while keeping data accessible, which is where most cost savings come from.
Backups are designed for recovery. They capture a snapshot of data so it can be restored in case of failure or loss. Archiving is designed for long-term retention. Archived data is kept for compliance, historical reference, or occasional access. In healthcare, both are important. Backups protect against data loss, while archives ensure records are retained and accessible over time.
Long-term healthcare data should be stored in a system that balances three things: cost, compliance, and access. Low-cost storage alone is not enough if the data is difficult to retrieve. At the same time, keeping everything in active systems creates unnecessary expense. The right approach allows organizations to store data securely, control access, and retrieve records without relying on legacy systems or technical workarounds.